When a person is lying supine

Correct Answer: A

Rationale: When a person lies supine, the body's surface is exposed to the surrounding air, leading to heat loss through radiation. This causes the surface temperature to decrease. The correct answer is A because lying supine allows for more heat dissipation. Choice B is incorrect because lying supine does not trap heat, causing a decrease in temperature, not an increase. Choices C and D are not relevant to the scenario described.

Correct Answer: A

Rationale: The correct answer is A because taking an oral temperature on an unconscious patient can be dangerous due to the risk of aspiration if the patient regurgitates. For unconscious patients, other temperature measurement methods like tympanic or temporal are safer. Choice B (Newborn infant) is not the correct answer because taking an oral temperature on a newborn infant is generally safe and commonly done. Choices C and D are not provided, but they would be incorrect as they do not align with the rationale provided for why choice A is correct.

Correct Answer: A

Rationale: The correct answer is A because providing oral care before sputum collection in the evening helps reduce contamination from food particles and bacteria present in the mouth. This ensures a more accurate sputum sample for analysis. Choice B is incorrect as proper oral care is essential before sputum collection. Choices C and D are incomplete and do not provide any relevant information.

Correct Answer: B

Rationale: The correct answer is B: An unbroken skin. The skin acts as the first line of defense by forming a physical barrier against pathogens, preventing them from entering the body. It also secretes oils and acids that can kill or inhibit the growth of harmful bacteria. Good nutrition (choice A) is important for overall health but is not the first line of defense. Choices C and D are blank and not applicable. In summary, an unbroken skin is crucial as the initial barrier to protect the body from external threats.

Correct Answer: A

Rationale: The correct answer is A: Breakfast. Breakfast is considered the best meal of the day as it kickstarts your metabolism, provides essential nutrients after fasting overnight, and gives you energy for the day. It sets the tone for healthy eating habits. Dinner (B) is important too but not as beneficial for metabolism. Happy meal (C) and free meal (D) are not relevant terms in the context of nutritional value or health benefits.